Carrageenan Iota is a natural hydrocolloid, carrageenan is a natural extract from specific red seaweed species that are farmed and processed with alkali. It is used as a suspending and emulsifying stablizer, thickener, binder and gelling agent.
This iota type is standardized with sucrose. There are two other type of carrageenan: kappa and lamda.
In food, gels made from Iota Carrageenan have a high melting temperature, so they do not melt on hot days and do not require refrigeration to make them set, so these are advantages in hot weather or kitchens, and a further advantage is that they do not toughen on storage.